Confirmed:
- Mario Kart 8 Deluxe
- Super Mario Odyssey
- Super Smash Bros. Ultimate
- The Legend of Zelda: Breath of the Wild
- Pokemon Let's Go Pikachu/Eevee!
Guaranteed:
- Splatoon 2
- Animal Crossing
- Pokemon Gen 8
Most Likely:
- new 3D Mario
- new 3D Zelda
- Mario Maker 2
Somehow possible:
- New Super Mario Bros. U Deluxe
- Super Mario Party
- Minecraft
- GTA V (if comes to Switch)